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Reduce allocations during conversion, enable new UnsafeConvertToVersion path
Cleans up the conversion path to avoid a few unnecessary allocations, then creates a new UnsafeConvertToVersion path that will allow encode/decode to bypass copying the object for performance. In that subsequent PR, ConvertToVersion will start to call Copy() and we will refactor conversions to reuse as much of the existing object as possible.
Also changes the unversioned.ObjectKind signature to not require allocations - speeds up a few common paths.
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WIP v0 NVIDIA GPU support
```release-note
* Alpha support for scheduling pods on machines with NVIDIA GPUs whose kubelets use the `--experimental-nvidia-gpus` flag, using the alpha.kubernetes.io/nvidia-gpu resource
```
Implements part of #24071 for #23587
I am not familiar with the scheduler enough to know what to do with the scores. Mostly punting for now.
Missing items from the implementation plan: limitranger, rkt support, kubectl
support and docs
cc @erictune @davidopp @dchen1107 @vishh @Hui-Zhi @gopinatht
Implements part of #24071
I am not familiar with the scheduler enough to know what to do with the scores. Punting for now.
Missing items from the implementation plan: limitranger, rkt support, kubectl
support and user docs
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Add subPath to mount a child dir or file of a volumeMount
Allow users to specify a subPath in Container.volumeMounts so they can use a single volume for many mounts instead of creating many volumes. For instance, a user can now use a single PersistentVolume to store the Mysql database and the document root of an Apache server of a LAMP stack pod by mapping them to different subPaths in this single volume.
Also solves https://github.com/kubernetes/kubernetes/issues/20466.
Automatic merge from submit-queue
Promote Pod Hostname & Subdomain to fields (were annotations)
Deprecating the podHostName, subdomain and PodHostnames annotations and created corresponding new fields for them on PodSpec and Endpoints types.
Annotation doc: #22564
Annotation code: #20688
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Remove requirement that Endpoints IPs be IPv4
Signed-off-by: André Martins <aanm90@gmail.com>
Release Note: The `Endpoints` API object now allows IPv6 addresses to be stored. Other components of the system are not ready for IPv6 yet, and many cloud providers are not IPv6 compatible, but installations that use their own controller logic can now store v6 endpoints.
Had to move other things around too to avoid a weird api ->
cloudprovider dependency.
Also adding fixes per code reviews.
(This is a squash of the previously approved commits)
Most volume plugins use SafeFormatAndMount, which uses ext4 by default.
FlexVolume plugin has FSType attribute 'omitempty', so reflect it in the
description of the type.
k8s-merge-robot